Converting an All-Wheel Drive (AWD) Car to Rear-Wheel Drive (RWD): Possibility, Challenges, and Considerations

Introduction

Converting a car from all-wheel drive (AWD) to rear-wheel drive (RWD) is a complex but potentially feasible task if one has the necessary skills, knowledge, and resources. This article explores the feasibility, challenges, and considerations involved in such a conversion, drawing from real-life examples and expert insights.

Feasibility and Challenges

It is indeed possible to convert an AWD car to RWD, as demonstrated by several enthusiasts. The process typically involves removing the front driving system components such as the front wheel drive shaft, transmission, and front differential. However, this process is not simple and can be costly and time-consuming.

For instance, an enthusiast owns a 2006 Lamborghini Gallardo Spider with a 6-speed manual transmission. By removing the heavy front wheel drive shaft and transmission front differential, the car became much lighter and faster, weighing 95 pounds less and performing better. Nevertheless, this task required a high degree of skill and knowledge, and the benefits of the conversion must be weighed against the effort and cost involved.

Cost-Benefit Analysis

Converting an AWD car to RWD is often not a sound financial decision. Instead, it might be more practical to purchase a car that is already suited to your needs. For example, if you have a 1983 Chevy diesel van that originally had a rear-wheel drive (RWD) configuration, you could easily convert it to have a part-time four-wheel drive (4WD) option with the appropriate transfer case. Alternatively, purchasing a car that offers both RWD and AWD as standard options might be a better choice.

However, for those who are mechanically inclined and enjoy the challenge, the conversion can yield satisfying results. The process involves lifting the engine to make space for the differential and rear-drive setup, and sometimes adjusting the front subframe/cross member. This can significantly impact the vehicle's ride height and clearance.

Examples of Conversions

Some vehicles are designed to be versatile, offering options to switch between AWD, RWD, and 2WD based on the transfer case installed. For example, a 1983 Chevy diesel van can be configured with a solid front axle and a transfer case, giving it the ability to run in AWD, 4WD, or 2WD mode. This flexibility is crucial for those who need to switch driving modes frequently, such as off-roading enthusiasts or those who live in areas with variable weather conditions.

Other vehicles, like older models such as the 1983 Commando, had a simpler setup. The front wheels could be manually locked to enable four-wheel drive (4WD) operation. Modern cars, on the other hand, often use sophisticated electronic systems to manage traction and drive modes. These systems are highly integrated and complex, making manual conversion less practical, if not impossible.

Expert Opinions and Considerations

Enthusiasts and experts advise that the conversion process should only be attempted by those with significant mechanical expertise. The process involves removing heavy components, adjusting the vehicle's mechanics, and often increasing the ride height. This can be a complex and time-consuming task requiring precise adjustments and modifications.

Furthermore, the benefits of such a conversion must be carefully considered. While a lighter and more agile car can be a significant advantage, the process may not justify the cost and effort involved. The end result should always be a well-balanced and reliable vehicle that meets the owner's needs.

For those interested in converting their AWD car to RWD, it is recommended to consult with experienced mechanics or auto enthusiasts who have successfully completed such modifications. Careful planning and budgeting are essential to ensure that the conversion is both effective and economically feasible.

Conclusion

Converting an AWD car to RWD is a challenging but achievable task for those with mechanical prowess and the right resources. While it can yield performance and weight benefits, the process is complex and costly. For most, it is more practical to purchase a car that already offers the desired driving modes. Those who choose to convert should approach the process with careful planning and an understanding of the potential drawbacks.